{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["process characterization", "machanical property", "material", "concept or principle", "process parameter", "manufacturing process"], "input": "Recent investigations have shown that the lack of knowledge on DfAM tools and techniques are seen as one of the barriers for the further implementation of AM ."}
{"process characterization": [], "machanical property": [], "material": ["as"], "concept or principle": [], "process parameter": [], "manufacturing process": ["AM"]}